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78 lines
1.2 KiB
78 lines
1.2 KiB
6 months ago
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FUNCTION_BLOCK BS_FEC
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VAR_EXTERNAL
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END_VAR
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VAR_INPUT
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RUN : BOOL ; (* PID功能块启用 *)
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SET : REAL ; (* 调节目标值 *)
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FB : REAL ; (* 调节目标值的反馈值 *)
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Dead_Band : REAL :=10.0 ; (* 死区 *)
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Delay : TIME :=t#300s;(* 延时时间 *)
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END_VAR
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VAR_OUTPUT
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DevC : BOOL ; (* 设备开关控制 *)
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END_VAR
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VAR
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ton1 : TON ;
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ton2 : TON ;
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END_VAR
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(*
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时 间：20200220
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版 本：1.0
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作 者：潘平
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名 称：设备开关值控程序
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说 明：用于设备开关的值控程序
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备 注：适用于风机联动环境值等控制
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依赖块：无
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输入变量
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RUN : BOOL ; PID功能块启用
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SET : REAL ; 调节目标值
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FB : REAL ; 调节目标值的反馈值
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Dead_Band : REAL ; 死区,默认10
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Delay : TIME ; 延时时间,默认300S
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输出变量
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DevC : BOOL ; 设备控制输出
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*)
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(*
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FB>SET DevC:=1
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FB-(SET-D)<0 DevC:=0
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*)
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ton1(pt:=Delay);
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ton2(pt:=Delay);
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if RUN =1 then
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if FB-SET>=0.0 then
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DevC:=1;
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ton1.in:=1;
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else
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ton1.in:=0;
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end_if;
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if ton1.q=1 then
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DevC:=1;
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end_if;
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if FB-(SET-Dead_Band)<0.0 then
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ton2.in:=1;
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else
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ton2.in:=0;
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end_if;
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if ton2.q=1 then
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DevC:=0;
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end_if;
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end_if;
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END_FUNCTION_BLOCK
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